Cristin-resultat-ID: 1805607
Sist endret: 15. februar 2021, 21:33
NVI-rapporteringsår: 2020
Resultat
Vitenskapelig artikkel
2020

Biodegradation of weathered crude oil in seawater with frazil ice

Bidragsytere:
  • Synnøve Lofthus
  • Ingrid Bakke
  • Julien Tremblay
  • Charles W. Greer og
  • Odd Gunnar Brakstad

Tidsskrift

Marine Pollution Bulletin
ISSN 0025-326X
e-ISSN 1879-3363
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2020
Publisert online: 2020
Trykket: 2020
Volum: 154
Artikkelnummer: 111090
Open Access

Importkilder

Scopus-ID: 2-s2.0-85082688716

Beskrivelse Beskrivelse

Tittel

Biodegradation of weathered crude oil in seawater with frazil ice

Sammendrag

As ice extent in the Arctic is declining, oil and gas activities will increase, with higher risk of oil spills to the marine environment. To determine biotransformation of dispersed weathered oil in newly formed ice, oil dispersions (2–3 ppm) were incubated in a mixture of natural seawater and frazil ice for 125 days at −2 °C. Dispersed oil in seawater without frazil ice were included in the experimental setup. Presence or absence of frazil ice was a strong driver for microbial community structures and affected the rate of oil degradation. n-alkanes were degraded faster in the presence of frazil ice, the opposite was the case for naphthalenes and 2–3 ring PAHs. No degradation of 4–6 ring PAHs was observed in any of the treatments. The total petroleum oil was not degraded to any significant degree, suggesting that oil will freeze into the ice matrix and persist throughout the icy season.

Bidragsytere

Synnøve Lofthus

  • Tilknyttet:
    Forfatter
    ved Klima og miljø ved SINTEF Ocean
  • Tilknyttet:
    Forfatter
    ved Institutt for bioteknologi og matvitenskap ved Norges teknisk-naturvitenskapelige universitet

Ingrid Bakke

  • Tilknyttet:
    Forfatter
    ved Institutt for bioteknologi og matvitenskap ved Norges teknisk-naturvitenskapelige universitet

Julien Tremblay

  • Tilknyttet:
    Forfatter
    ved National Research Council of Canada

Charles Greer

Bidragsyterens navn vises på dette resultatet som Charles W. Greer
  • Tilknyttet:
    Forfatter
    ved National Research Council of Canada

Odd Gunnar Brakstad

  • Tilknyttet:
    Forfatter
    ved Klima og miljø ved SINTEF Ocean
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